CN208619496U - A kind of Anti-loosening nut - Google Patents
A kind of Anti-loosening nut Download PDFInfo
- Publication number
- CN208619496U CN208619496U CN201821189080.XU CN201821189080U CN208619496U CN 208619496 U CN208619496 U CN 208619496U CN 201821189080 U CN201821189080 U CN 201821189080U CN 208619496 U CN208619496 U CN 208619496U
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- CN
- China
- Prior art keywords
- nut
- internal tooth
- washer
- loosening
- shaped ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Bolts, Nuts, And Washers (AREA)
Abstract
A kind of Anti-loosening nut is made of nut body, internal tooth washer, C-shaped ring, the rotation that Anti-loosening nut passes through itself, cooperation is by the contact surface of fastenings, the internal tooth compressive deformation of internal tooth washer is stuck in bolt thread slot, increase the screw rod and nut closeness of contact, mutual extruding force of bolt, to improve the frictional force of nut and bolt, anti-loosening effect is played.A kind of locking kinetic force of friction of Anti-loosening nut is far longer than plain nut, even greater than nylon stop nut, can play good anti-loosening effect, ensure that the reliability and safety of equipment.A kind of Anti-loosening nut structure is simple, easy to process, easy to use, and never becoming loose truly may be implemented.
Description
Technical field
The present invention relates to a kind of nut more particularly to a kind of Anti-loosening nut, it is primarily adapted for use in and improves the anti-loosening of nut
Performance.
Background technique
The working principle of nut be carried out using the frictional force between nuts and bolt it is self-locking.But in dynamic loading this
The self-locking reliability of kind will reduce.In some important occasions, we will take some locking measures, guarantee nut check
Reliability.It is exactly wherein one such locking measures with Anti-loosening nut.Fastener is being widely used, many fasteners
It is the working environment in heavy duty, vibration, it is easy to the fastener of the case where loosening, certain positions once loosens,
It is likely to cause major accident even threat to life.Therefore, the anti-loosening performance for improving nut becomes urgent problem.
Chinese patent application publication No. is CN104110433A, and data of publication of application is the patent of invention on October 22nd, 2014
Disclose a kind of automatically lock Anti-loosening nut, including be equipped with threaded hole nut body, described nut body one end be equipped with to
The annular convex platform of outer extension is fixed with the flexible locking piece of annular, the elasticity of the annular in the looping pit of the annular convex platform
The centre bore of lock sheet and threaded hole are concentric, and the internal diameter of the flexible locking piece is less than the internal diameter of threaded hole, the lock sheet
Inner surface is equipped with the protrusion of Xiang Kongxin radially protruding, is additionally provided with flange portion on nut body, sets on the end face of the flange portion
There are continuous radial anti-slop serrations.Although the nut can play antidetonation, anti-loosening effect, it is still had the disadvantage that
Firstly, the flexible locking piece that the invention uses is metal material, the rigidity of metal locking piece is larger, shock-proof check move performance compared with
Difference.
Summary of the invention
The purpose of the present invention is overcome shock-proof check existing in the prior art move performance is poor, complicated defect with ask
Topic provides a kind of dynamic Anti-loosening nut that performance is good, structure is simple, easy to process of shock-proof check.A kind of Anti-loosening nut, it is special
Sign is to be made of nut body, internal tooth washer, C-shaped ring, and C-shaped ring is the annulus that cross section is " C " shape, the C-shaped in C-shaped ring
Open recess is directed toward the center of C-shaped ring, and C-shaped ring and the plane of nut body setting screw hole are affixed, the screw hole and C-shaped of nut body
Ring is concentric circles；Internal tooth washer is made of faced washer and internal tooth, and internal tooth is set on the inside round edge of faced washer through-hole, interior
Teeth directional is tilted far from the side of nut body, and internal tooth is a certain included angle when tilting with washer plane, and internal tooth washer is set to C-shaped
Among ring；Internal tooth washer can be directly affixed with the plane of nut body setting screw hole, while removing C-shaped ring.C-shaped ring can be replaced
It is changed to L shape ring.When the internal tooth of internal tooth washer tilts and the plane of faced washer is formed by angle as acute angle.A kind of anti-loosening spiral shell
Mother cooperates by the contact surface of fastenings by itself rotation, the internal tooth compressive deformation of internal tooth washer is stuck in bolt thread
In slot, the screw rod and nut closeness of contact, mutual extruding force of bolt are increased, to improve the friction of nut and bolt
Power plays anti-loosening effect.
The utility model has the advantages that the present invention can efficiently solve railway, train, automobile and Other Engineering mechanized equipment because of equipment
Constantly vibration causes the common bolt device of fixed equipment to occur to loosen and the equipment breakdown of initiation, thus is conducive to improve
The safety of vibratory equipment in use.It is locking instead of tradition such as various conventional nuts, nylon stop nut, live dispensings
Dynamic method, while the piece surface being fastenedly connected will not be damaged.
Detailed description of the invention
Fig. 1 is a kind of perspective view of Anti-loosening nut of the present invention；
Fig. 2 is a kind of main view of Anti-loosening nut of the present invention；
Fig. 3 is a kind of top view of Anti-loosening nut of the present invention；
Fig. 4 is a kind of main view perspective view of Anti-loosening nut of the present invention；
Fig. 5 is a kind of perspective view 1 of Anti-loosening nut of the present invention.
In figure: nut body 1, C-shaped ring 2, faced washer 3, internal tooth 4, screw hole 5.
Specific embodiment
Below in conjunction with Detailed description of the invention and specific embodiment, the present invention is described in further detail: a kind of anti-loosening spiral shell
It is female, it is characterised in that be made of nut body 1, internal tooth washer, C-shaped ring 2, C-shaped ring is the annulus that cross section is " C " shape, C-shaped ring
The open recess of C-shaped in 2 is directed toward the center of C-shaped ring, and C-shaped ring 2 and the plane that screw hole 5 is arranged in nut body 1 are affixed, nut sheet
The screw hole 5 and C-shaped ring 2 of body 1 are concentric circles；Internal tooth washer is made of faced washer 3 and internal tooth 4, and internal tooth 4 is set to faced washer
On the inside round edge of 3 through-holes, internal tooth 4 to far from nut body 1 side tilt, internal tooth 4 tilt when and faced washer plane
It is a certain included angle, internal tooth washer is set among C-shaped ring 2；The faced washer 3 of internal tooth washer can directly with nut body 1
The plane that screw hole 5 is arranged is affixed, while removing C-shaped ring 2.C-shaped ring 2 could alternatively be L shape ring.The internal tooth 4 of internal tooth washer tilts
When to be formed by angle with the plane of faced washer 3 be acute angle.The material of internal tooth washer is less than bolt joined together using hardness
Metal material, for example, the materials such as copper internal tooth washer, aluminum internal tooth washer, it is ensured that while higher contact pressure also
Will not the screw thread of screw rod to bolt itself cause to damage.Internal tooth washer can also be using materials such as plastics, rubber, to increase
The coefficient of friction of internal tooth 4 after extruding.
The method of operation:
When using the present invention, screw rod is inserted in the side that a kind of Anti-loosening nut is provided with internal tooth washer and is constantly screwed, directly
To a kind of Anti-loosening nut close to by fastenings.Continue tightening nut at this time, then the contact surface of part can constantly squeeze internal tooth
The internal tooth 4 that washer tilts, so that the internal tooth 4 of internal tooth washer is intended to parallel with faced washer 3 or is in same plane.While with
Internal tooth 4 be extruded to and be continuously subject to the center of the screw hole 5 of nut body 1 with faced washer approximately the same plane, 4 top of internal tooth.
The screw diameter of bolt is constant at this time, so internal tooth 4 is contacted with screw flight, and is squeezed and deformed, 4 diameter of internal tooth of internal tooth washer
To being clamped on bolt or in thread groove.The phenomenon that passively providing friction pressure relative to conventional nylon stop nut, it is a kind of
Anti-loosening nut is constantly tightened with nut body 1, and the internal tooth 4 of internal tooth washer is constantly common by axial compressive force and radial pressure
It squeezes, ultimately form bigger extruding force and closer is engaged.It is formed between internal tooth washer and screw rod, screw thread at this time
Very big contact pressure, according to frictional force calculation formula it is found that pressure is bigger, frictional force is bigger, so the present invention is a kind of anti-
The locking kinetic force of friction of loose nut is far longer than plain nut, even greater than nylon stop nut, can play anti-well
Loosen effect.It will finally realize that the locking between bolt and nut ensure that and set so that any loosening will not occur by fastenings
Standby reliability and safety.A kind of Anti-loosening nut structure is simple, easy to process, easy to use, and real meaning may be implemented
On never becoming loose.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (3)
1. a kind of Anti-loosening nut, it is characterised in that be made of nut body, internal tooth washer, C-shaped ring, C-shaped ring is that cross section is
The annulus of " C " shape, the open recess of the C-shaped in C-shaped ring are directed toward the center of C-shaped ring, C-shaped ring and nut body setting screw hole it is flat
Face is affixed, and the screw hole and C-shaped ring of nut body are concentric circles；Internal tooth washer is made of faced washer and internal tooth, and internal tooth is set to
On the inside round edge of faced washer through-hole, interior teeth directional is tilted far from the side of nut body, is in washer plane when internal tooth tilts
Certain angle, internal tooth washer are set among C-shaped ring；Internal tooth washer can be directly solid with the plane of nut body setting screw hole
It connects, while removing C-shaped ring.
2. a kind of Anti-loosening nut according to claim 1, it is characterised in that C-shaped ring could alternatively be L shape ring.
3. a kind of Anti-loosening nut according to claim 1, it is characterised in that when the internal tooth of internal tooth washer tilts and plane
It is acute angle that the plane of washer, which is formed by angle,.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821189080.XU CN208619496U (en) | 2018-07-26 | 2018-07-26 | A kind of Anti-loosening nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821189080.XU CN208619496U (en) | 2018-07-26 | 2018-07-26 | A kind of Anti-loosening nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208619496U true CN208619496U (en) | 2019-03-19 |
Family
ID=65707363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821189080.XU Expired - Fee Related CN208619496U (en) | 2018-07-26 | 2018-07-26 | A kind of Anti-loosening nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208619496U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112032180A (en) * | 2020-08-28 | 2020-12-04 | 北京航空航天大学 | Double-nut anti-loosening device suitable for shaft parts |
-
2018
- 2018-07-26 CN CN201821189080.XU patent/CN208619496U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112032180A (en) * | 2020-08-28 | 2020-12-04 | 北京航空航天大学 | Double-nut anti-loosening device suitable for shaft parts |
| CN112032180B (en) * | 2020-08-28 | 2021-09-17 | 北京航空航天大学 | Double-nut anti-loosening device suitable for shaft parts |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190319 Termination date: 20190726 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |